12981780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{10303}}^1$

素因数の和:10325

約数の個数: 72

約数和(自身を含む): 45007872

約数和(自身を除く): 32026092

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 10303, 20606, 30909, 41212, 51515, 61818, 72121, 92727, 103030, 123636, 144242, 154545, 185454, 206060, 216363, 288484, 309090, 360605, 370908, 432726, 463635, 618180, 649089, 721210, 865452, 927270, 1081815, 1298178, 1442420, 1854540, 2163630, 2596356, 3245445, 4327260, 6490890, 12981780]

約数ペア:

[(1, 12981780), (2, 6490890), (3, 4327260), (4, 3245445), (5, 2596356), (6, 2163630), (7, 1854540), (9, 1442420), (10, 1298178), (12, 1081815), (14, 927270), (15, 865452), (18, 721210), (20, 649089), (21, 618180), (28, 463635), (30, 432726), (35, 370908), (36, 360605), (42, 309090), (45, 288484), (60, 216363), (63, 206060), (70, 185454), (84, 154545), (90, 144242), (105, 123636), (126, 103030), (140, 92727), (180, 72121), (210, 61818), (252, 51515), (315, 41212), (420, 30909), (630, 20606), (1260, 10303)]